{
    "tile_processors": [
      {
        "type": "placeholder",
        "target": "ORE",
        "levels": [
          {
            "level": 0,
            "probability": 0.35,
            "success": {
                "minecraft:coal_ore": 20,
                "minecraft:redstone_ore": 20,
                "minecraft:lapis_ore": 20,
                "minecraft:copper_ore": 20,
                "minecraft:iron_ore": 18,
                "minecraft:gold_ore": 8,
                "minecraft:diamond_ore": 8,
                "minecraft:emerald_ore": 12,
                "minecraft:ancient_debris": 1
            },
            "failure": {
              "minecraft:stone": 1
            }
          }
        ]
      }
    ]
  }